Seed coating formulations and its effects on controlling Pythium diseases of Poa pratensis

Based on Pythium diseases caused by the soil borne and seed borne pathogens, an experiment was conducted to develop a seed coating formulations to control Pythium diseases in Poa pratensis at the seedling stage of turf grasses by combing hymexazol, metalaxy and plant growth regulator in Heilongjiang province. This study indicated that the seed coating formulations of drug type and special fertilizer compound type specialized for turf was safe and harmless to the turf grass. These two seed coating formulations not only reduced the incidence of Pythium diseases by 80%97%, but also encouraged the turf grass growth. Seed coating of hymexazol+thiram and hymexazol+thiram+root stimulate increased plant height with 1.632.73 cm, root length with 1.52.5 cm, root weight with 1.541.81 g, tiller with 1.332.00 number.